Drive unit and clutch assembly for an adjustable bed

Details Drive unit and clutch assembly for an adjustable bed Drive unit and clutch assembly for an adjustable bed

1992-03-16

1993-12-14

Trettel, Michael F.

Beds

Invalid bed or surgical support

Sectional user supporting surface

5620, 74665GE, 192 482, 192 489, 192 90, 192 83, A61G 706

Patent

active

052690318

ABSTRACT:
The present invention is a drive unit for an adjustable bed, comprising motor means and a clutch assembly comprising a toothed gear jack drive coupling, a toothed gear drive coupling and means for engaging and disengaging the jack drive coupling and the drive coupling, wherein the drive coupling is driven by the motor means and wherein the jack drive coupling, when engaged with the drive coupling by the clutch assembly, drives a controller shaft of the adjustable bed to raise or lower a section of the bed.

REFERENCES:
patent: 1810317 (1931-06-01), Lasker
patent: 3129607 (1964-04-01), Schaefer
patent: 3349877 (1967-10-01), Downs
patent: 3917042 (1975-11-01), Summa
patent: 4094024 (1978-06-01), Benoit et al.
patent: 4174547 (1979-11-01), Wetzler
patent: 4324010 (1982-04-01), Houlberg et al.
patent: 4472846 (1984-09-01), Volk, Jr. et al.
patent: 4545084 (1985-10-01), Peterson
patent: 4854923 (1989-08-01), Sexton et al.
patent: 5095562 (1992-03-01), Alexander

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